Tilting trap



I I r I I I I F. C. FARNSWORTH.

TILTING TRAP.

APPLlCATION FILED SEPT. 30. ms.

308,897. Patented July 8, 1919.

FIG: 1-

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:16 o M W 95 S s o 2 1' Z9 :12 Hair r ni FIGJ- THE COLUMBIA PLANOGRAPH co., WASHINGTON, uv C- UNITED STATES A ENT OFFICE.

FREDERICK C. FARNSWORTH, OF CONSHOHOOKEN, PENNSYLVANIA.

TILTJFING TRAP.

Specification of Letters Patent.

. Patented July 8, 1919.

Application filed September 30, 1918. Serial No. 256,167. I

delivering it against boiler or other pressure as may be required. Traps of this character are especially'useful 1n collecting and dellvermg condensation water from vacuum steam heating systems and returning the same to the boiler. My improvements relate more particularly tothe means for pivoting the tilting tank and the control of the steam supply and venting means.

With the above and other objects in view,

the nature of which will be more fully understood from the. description hereinafter,

1 the invention consists in the novel construction of tilting trap as hereinafter more fully described and defined in the claims.

the body broken away to show the interior; Fig. 2 is a plan view of the same; Fig. 3

1s a cross sectional view of the same taken on line acw of Fig. 1; and Fig. 4 is a sectional view illustrating the special bearing for the tilting body.

2 is the tubular bodyand is divided by a transverse partition 3 arranged nearer one end than the other, thereby providing two chambers 4 and 5, the former for water and the latter for sand or other suitablecounterweighting material. Instead of sand, the compartment may be filled with water, or both water and sand. These materials may be inserted through a sealed opening 42 at the top and removed, if necessary, through a plugged hole 43 at the bottom. By this provision, the tank may be shipped with the compartment 5 empty (to reduce freight cost) and then at place of use, have the sand or water or both introduced to provide a definite counterweight.

6 and 7 are two pipes welded into the bottom of the tank body 2 and opening into the compartment 4' near the partition 3, so as to be preferably somewhat neare the weighted end of the tank than the other. Pipe 6 extends to near the top of the compartment 4, whereas pipe 7 terminates just inside and near the bottom thereof (Fig. 3).

Before these pipes 6 and 7 are welded to the body 2, they are tightly screwed into a unitary bearing casting comprising a journal 11 having at the respective ends the heads 9 and 10, said heads provided with L shaped passages and also forming annular shoulders 11*; upon the ends of the journal portion. The pipes 6 and 7 are respectively screwed into the upper portions of the heads 9 and 10 and in communication with the upper openings of the passages therein. When the V shaped structure thus formed is completed, the pipes are inserted into the tank 21nd electrically or otherwise welded in posiion.

Thev journal 11 is received ina bearing 13 and'held in position thereon'by a cap or strap 15 securedin place by bolts or cap screws 16. This bearing may be lined with Babbitt-metal or brass as at 14, if so desired, but I do not restrict myself in this respect. The annular shoulders provided by the heads 9 and 10 fit against each end of the bearing to prevent end play of the journalf The bearing 13 is bolted upon the base plate 12 by cap screws 16 extending through slotted foot flanges 13*, so as to permit adjusting of the tank 2 upon the base plate in the length to facilitate assemdelivered through pipe 22, check valve 23, pipe 20, swing-joint 19, and pipe 7 into compartment 4; and therefrom, it is discharged under steam pressure (admitted by pipe (3) through pipe 7, swing-joint 19, p1pe20, check valve 25, and pipe 24 to place of reception.

Referrin to the steam side of the trap, the fixed p1pe 27 of the swing-joint 26 connects with a pipe 29 through elbow 28. Plpe 28 is connected with a threeway valve 31 which is operated by a rocker arm 33 and a link 34 connecting the said rocker arm with the tilting tank 2. The valve 31 is also connected on its inlet side with a steam supply pipe 32, which is supported by the abutment 18 of the base plate 12. The remain ing port of valve 31 is open to the atmosphere. When the valve 31 is operated, it admits steam from pipe 32 to pipe 29 and thence by pipe 27, swing joint 26 and pipe 6, to upper part of compartment 4:, said action taking place when the compartment contains water and that end of tank 2 lowered upon the abutment 18. After the water has been forced out of compartment at by the steam and discharged from pipe 24, the tank rights itself under the automatic action of the counter-weighted end 5 to the position shown in Fig. 1 and causes the valve 31 to be operated to shut ofi the steam supply and vent the compartment 4 of steam and air when a fresh supply of water is admitted under gravity or pressure.

The trap is automatic in operation and receives the water without resistance and discharges it under steam pressure, high or low according to requirements of the installation. In using this trap to deliver into a boiler against boiler pressure, the trap is placed at a suflicient elevation to provide a static head to insure delivery into the boiler by gravity when the boiler pressure is supplied to the trap. In such event the condensation water, if collected at a lower level, must be elevated into the boiler feeding trap by use of a similar trap supplied with boiler pressure.

The trap body 2 oscillates upon its journal .11 in bearing 13 with each filling and discharge of water to and from compartment 4 and is limited in extent of oscillation by the two abutments 17 and 18. Adash-pot 18 may be used to prevent objectionable jar. As the journal 11 has a fixed relation to the tank 2, any slight adjustment of the bearing 13 necessary for facilitating assembling may be permitted; thus when the pipe 29 is secured in place, the bearing 13 is positioned accordingly to avoid strain upon the swing-joint 26 and then secured rigidly to the base plate by the screws 16*.v It is thus important that the bearing 13 shall be adjustable.

By employing a unitary casting, comprising the journal 11 and heads 9 and 10, nto which the pipes 6 and 7 and swingoints 19 and 26 may be firmly secured, there 1s no possibility of distortion or leakage due to slipping or loosening of screw threads such as may occur when ordinary pipe fittings are employed for these parts. This is very important where the tanks are large and vibration under heavy load tends to loosen pipe joints adjacent to the bearing.

It will now be apparent that I have de vised a novel and useful construction which embodies the features of advantage enumerated aS desirable, and while I have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that I do not restrict myself to the details, as the same are susceptible of modification in various particulars without departing from the spirit or scope of the invention.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a trap of the character stated, a tilt ing body, and combined means for supporting the body and supplying water and steam alternately to it including a unitary casting comprising a journal and heads at each end thereof providingshoulders, pipes secured to the heads and extending into and attached to the body, and swingjoints connecting with the heads and in axial alinement with the journal, combined with a base plate and bearing for supporting the journal; said bearing fitting between the shoulders of the heads thereof. 1

2. In a trap of the character stated,the combination of a tilting body, a journal secured to and supporting the body, means for supplying water to and from the body, a base plate, a steam pipe having connection with the base plate so as to be fixedly positioned thereto and supplying steam to the body, means for controlling the supplyof steam and venting the body, actuated by the oscillations of the body, and an adjustable bearing for the journal adjustably secured to the base plate whereby it may be adjusted thereon to compensate for any variationin the pipe connection with the base plate.

3. In a tilting trap, a tubular body and a journal support therefor comprising two pipes secured to the body in transverse aline ment and respectively opening therein at different elevations, and a unitary casting providing a transverse journal and "head portions having L shaped passages each opening both upwardly and axially with the journal, the upward openings receiving the lower ends of the pipes from the body and the axial openings adapted for receiving Water and steam, the construction being such axial alinement with the journal, said enthat a rigid journal support free from angularged end portions providing shoulders for 10 lar pipe joints is provided for the body. the respective ends of the journal and hav- 4. In a tilting trap, a journal support for ing lateral tubular extensions for connec- 5 the tilting body comprising a unitary casttion with the body.

ing having a central journal and enlarged In testimony of Which invention, I hereend portions each having angular passages unto set my hand. therethrough from top to the outer ends in F. C. FARNSWORTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0. 

